Three Floor Bonjour Dress in Black. - size US 6/ UK 10 (also in ) Three Floor Bonjour Dress in Black. - size US 6/ UK 10 (also in ) Poly blend. Dry clean only. Unlined. Sheer mesh sleeves and yoke. Contrast lace fabric. Pleated detail. Exposed back zipper closure. TFLO-WD151. BONJOUR. Founded in 2011, THREE FLOOR was born from a shared desire to provide contemporary, high quality fashion based on clean fluid lines and softly tailored separates. Inspired by fashions elite; bloggers, editors and models off duty; THREE FLOOR centers their look on effortless style and strategic cut outs, bringing a truly innovative approach to detail and silhouette.